Product comparison · 2 laptops

Lenovo E420s + mouse + case vs Lenovo E520 + mouse + case

129specifications compared
30differ
99identical
9known for one product only

Key differences

Display diagonal
- E420s + mouse + case:35.6 cm (14")
- E520 + mouse + case:39.6 cm (15.6")
Display brightness
- E420s + mouse + case:200 cd/m²
- E520 + mouse + case:220 cd/m²
Contrast ratio (typical)
- E420s + mouse + case:300:1
- E520 + mouse + case:500:1
Processor family
- E420s + mouse + case:Intel® Core™ i5
- E520 + mouse + case:Intel® Core™ i3
Processor generation
- E420s + mouse + case:2nd gen Intel® Core™ i5
- E520 + mouse + case:2nd gen Intel® Core™ i3
Processor model
- E420s + mouse + case:i5-2410M
- E520 + mouse + case:i3-2330M
Processor frequency
- E420s + mouse + case:2.3 GHz
- E520 + mouse + case:2.2 GHz
Processor cache type
- E420s + mouse + case:Smart Cache
- E520 + mouse + case:L3

Side by side

Differences highlightedShow differences only

Comparison of E420s + mouse + case, E520 + mouse + case
138 specifications	A Lenovo E420s + mouse + case View product	B Lenovo E520 + mouse + case View product
Designidentical
Product colourKnown for one	Unknown — not stated by the source	Black
Display3 differ
Display diagonalDiffers	35.6 cm (14")	39.6 cm (15.6")
Display brightnessDiffers	200 cd/m²	220 cd/m²
Contrast ratio (typical)Differs	300:1	500:1
Processor9 differ
Processor familyDiffers	Intel® Core™ i5	Intel® Core™ i3
Processor generationDiffers	2nd gen Intel® Core™ i5	2nd gen Intel® Core™ i3
Processor modelDiffers	i5-2410M	i3-2330M
Processor frequencyDiffers	2.3 GHz	2.2 GHz
Processor cache typeDiffers	Smart Cache	L3
Processor seriesDiffers	Intel Core i5-2400 Mobile Series	Intel Core i3-2300 Mobile Series
TjunctionDiffers	100 °C	85C ; 100C
PCI Express configurationsDiffers	1x8, 1x16, 2x4, 2x8	1x16, 2x8
CPU multiplier (bus/core ratio)Differs	23	22
Processor boost frequencyKnown for one	2.9 GHz	Unknown — not stated by the source
Storage1 differ
Total storage capacityDiffers	320 GB	500 GB
Number of HDDs installedKnown for one	Unknown — not stated by the source	1
Graphics4 differ
Discrete graphics cardDiffers	Yes	No
Discrete graphics card modelDiffers	AMD Radeon HD 6630M	Not available
Graphics card familyDiffers	AMD	Intel
On-board graphics card dynamic frequency (max)Differs	1200 MHz	1100 MHz
Networkidentical
Wi-Fi standardsKnown for one	Unknown — not stated by the source	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ports & interfaces2 differ
USB 2.0 ports quantityDiffers	2	3
ExpressCard slotDiffers	No	Yes
Performanceidentical
Motherboard chipsetKnown for one	Unknown — not stated by the source	Intel® HM65 Express
Processor special features4 differ
CPU configuration (max)Known for one	Unknown — not stated by the source	1
Intel® Insider™Differs	No	Yes
Intel® Turbo Boost TechnologyDiffers	2.0	No
Processor ARK IDDiffers	52224	53434
Processor codeKnown for one	Unknown — not stated by the source	SR04J
Processor package sizeDiffers	37.5x37.5 (rPGA988B); 31 x 24 (BGA1023)	37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)
Battery2 differ
Number of battery cellsDiffers	4	6
Battery life (max)Differs	7 h	6.2 h
Securityidentical
Fingerprint readerKnown for one	Yes	Unknown — not stated by the source
Weight & dimensions5 differ
WeightDiffers	1.88 kg	2.5 kg
WidthDiffers	349 mm	380 mm
DepthDiffers	236 mm	248.5 mm
Height (front)Differs	2.31 cm	2.93 cm
Height (rear)Differs	3.12 cm	3.37 cm
Other featuresidentical
Supplied AC adapter typeKnown for one	AC	Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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